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Finding the Fourth Proportional to 144,605.25, 216,997.65 and 69,733.04

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Solution

The fourth proportional to 144,605.25, 216,997.65 and 69,733.04 is: 104,642.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,605.25 : 216,997.65 = 69,733.04 : x
  2. Step 2: Convert to fraction form
    144,605.25/216,997.65 = 69,733.04/x
  3. Step 3: Cross multiply
    144,605.25x = 216,997.65 × 69,733.04
  4. Step 4: Simplify right side
    144,605.25x = 15,131,904,722.37
  5. Step 5: Solve for x
    x = 15,131,904,722.37/144,605.25
  6. Step 6: Final answer
    x = 104,642.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.